Steel fiber refers to the short steel fiber, cutting the wire, and hook on both ends of the style compressed into in accordance with the relevant provisions, has certain strength.Steel fiber is mainly used in the manufacture of steel fiber reinforced concrete and application in the tunnel, industrial floor, etc.446 # steel fiber is a kind of brand, starting with four words, apart from 446, with four words beginning with 430;all begin with four words of steel fiber, is a stainless steel fiber, because they have a common characteristic, is containing chromium (cr).
Steel fiber with corrosion resistant metals: chromium (cr), because of strong corrosion resistance of cr, so widely used in metallurgical industry, refractory material industry and chemical industry.Specific point is widely steel mills, used by metallurgical plant and chemical plant.Steel mill of steel water tank, for example, electrodes, metallurgy factory of furnace wall, furnace door, roof block, etc.
After the stainless steel fiber mixed with refractory matrix, can greatly improve the heat resistant structure thermal cycle impact resistance, heat resistance and abrasion resistance performance of the grade, can extend the service life of refractory material and industrial furnaces several times to dozens times, prevent or reduce high temperature crack, improve the bending strength, improve the snap heat and cold resistance and improve the coefficient of thermal conductivity, so as to improve the work efficiency, reduce production costs.
Weathering steel is a series of low alloy steels between normal steel and stainless steel, carbon steel adds a small amount of copper, nickel and other corrosion-resistant elements, and tough, plastic with stainless steel rolling, forming, welding and cutting, abrasion, high temperature, fatigue resistance properties; weather resistance for carbon steel 2~8 double coating for carbon steel 1.5~10 times. Mainly used in railway cars, bridges, towers and other long-term use of steel exposed to the atmosphere.
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Feature
tool steel high wear resistance
tool steel high compressive strength
tool steel good through-hardening properties
tool steel high stability in hardening
tool steel good resistance to tempering-back
Chemical Composition:
C Si Mn Cr Mo V
1.40-1.60 0.10-0.60 0.10-0.60 11.00-13.00 0.70-1.20 0.50-1.10
Standard: ASTM A681-2008
Heat treatment:
Annealed(+A) max: 255HB
Annealing: slow cooling at 650ºC-850ºCfurnace
Quenching: Preheat 650ºC~750ºC increased to 1010ºC, air-cooled, or into the 996ºC to keep the salt bath, then cooled.
Tempering: The cold work tool steel general tempering temperature is 170ºC-190ºC , Double tempering of Double tempering of DIN1.2379 tool steel is recommended.
Application:
DIN1.2379Tool steel apply to metal stamping die, drawing die, stainless steel sheet stamping die, die with high hardness; Lightweight materials used for cutting, thread rolling dies, drawing, pressure pads ; highly wear-resistant plastic mold.
Product Description
Cold work tool steel containing high carbon high chromium. It with strong wear resistance and
hardening.
Suit the production of a larger interface, complex shape, heavy working conditions a variety of Die and Tool .
Hot sale!!! manual wheelchair with lowest price!!!
1.Specifications:
1) model no.: thl809
2) steel manual wheelchair
3) fixed armrest
4) fixed legrest
5) 8” pvc castor
6) 24” spoke wheel with solid tyre
7) seat width 41/46
8) max user weight 100kg
2.Discription:
1) the width betweent two wheels: 60cm
2) the width of folding: 23cm
3) seat(backrest) width: 41cm
4) wheel’s diameter: 59cm
5) castor’s diameter: 20cm
6) seat height: 51cm
7) total height: 87cm
8) total width: 106cm
9) seat deep: 40cm
10) backrest height: 40cm
3.Faq
1) what is your moq?
A: our moq is total for one container.
2) what is your delivery time?
A: it’s depend on your quantity and the shipment. Usually on 7-30days after order and deposit confirmed..
3) what is the shipping port?
A: usually in guangzhou or shenzhen.
4) what is your company location?
A: our company is in foshan, guangdong, china.
5) what are your main products?
A: we are specialized in electric wheelchair, manual wheelchair, commode chair, shower chair, walker, walking stick, rollator, hospital bed and other healthcare products.
We owns advanced steel grating pressure welding equipment and technology, advanced cad design system for grating. Our grating products can be made according to yb/t4001-1998, ansi/naamm (mbg531-93) and bs4592-1:1995. The hot dip galvanizing process conforms to gb/t13912-2002.
Our products have been exported to many countries and regions such as japan, south korea, australia, britain, etc. And we are the reliable supplier for many government project in china .
Steel Grade: cold work steel
Standard: AISI, ASTM, BS, DIN, GB, JIS
Dimensions: Dia. 10mm-400mm
Place of Origin: Guangdong, China (Mainland)
Brand Name: OTAI
Model Number: 5140 steel
Technique: Hot Rolled
Application: Tool Steel Bar
Alloy Or Not: Is Alloy
Special Use: Mold Steel
Type: Alloy Steel Bar
Density: 7.85t/m³
Facial color: black oxide layer or polished
Production: EF/EAF+LF+VD/ESR
Tolerance: -0/+1mm
Standard: AISI,JIS,DIN,GB
Hot treatment: annealed
Length: 800-5800mm
Certification: ISO9001
Hardness: =225HB
Technique: hot rolled/forged/col drawn
Steel Grade: T1 Steel
Standard: AISI, ASTM, BS, DIN, GB, JIS
Dimensions: diameter:10-400mm
Place of Origin: Hebei, China (Mainland)
Brand Name: Yaoteng
Model Number: T1 Steel
Technique: Forged
Application: Die Steel Bar
Alloy Or Not: Is Alloy
Special Use: Mold Steel
Type: Alloy Steel Bar
Standard: AISI,JIS,DIN,GB
Steel grade: T1/1.3355/SKH2
Technique: forged
Surface: black or bright
Machining: milling,turning,polishing
Shape: Round bars/Flat bar/Plate
Steel making process: EAF+LF+VD+ESR
Heat treatment: Annealing/Q+T
Delivery condition: Hot rolled or forged/ Peeled or black
Test: Ultrasonic Testing
Alta special steel supply din 1.2085 / aisi 420fm plastic mould steel in round bar, plate, square, sheet and block.
Product range:
Round bars : dia 16mm - 500mm
Flat bars : thick 50mm - 400mm, width up to 810mm
Alta special steel is excellent chinese tool steels manufacturer, exporter, especially for forged bars d2/1.2379/skd11, h13/1.2344/skd61, o1/1.2510/sks3, a2, 1.2367, 1.2767 etc. Equipped with if, eaf, lf, vd, esr melting facilities, own rich export experience to european & american market.
Also we have great advantage on hot rolled rounds in grades of h11/1.2343, h13/1.2344, s7, o1/1.2510, o2/1.2842, 1.2329, 420/1.2083. (minimum dia is 14mm)
Please kindly feel free to contact us to get the best offer and service
Alta special steel is excellent chinese tool steels manufacturer, exporter, especially for forged bars d2/1.2379/skd11, h13/1.2344/skd61, o1/1.2510/sks3, a2, 1.2367, 1.2767 etc. Equipped with if, eaf, lf, vd, esr melting facilities, own rich export experience to european & american market.
Also we have great advantage on hot rolled rounds in grades of h11/1.2343, h13/1.2344, s7, o1/1.2510, o2/1.2842, 1.2329, 420/1.2083. (minimum dia is 14mm)
Please kindly feel free to contact us to get the best offer and service
Steel Expanded Metal With Raised & Flattened Type
Steel expanded metal is produced from one steel plate or roll through simultaneously slitting and stretching, which forms a wide array of diamond shaped openings with uniform sizes. During the expanding process, the metal can be expanded up to ten times its original width, losing up to 80 % its weight per meter, and becomes more rigid. It is lighter, less expensive than a single metal sheet, and also allows for free flow of liquid, heat, air and sound, yet producing impenetrable barrier to larger solid objects (or persons). Compared with the traditional flat metal sheet, steel expanded metal has more notable advantages for its versatile applications. More and more new applications are found for it in the family, office, and other industrial, commercial fields.
How is steel expanded metal made?
Steel expanded metal is manufactured by a process of shearing and stretching under a precisely programmed machine, which produces precise apertures but stretches the metal sheet (See more details in Technology). Different specifications can be made by changing the material or the expanded style.
Two types of expanded metal
Steel expanded metal is manufactured in two ways: raised expanded metal and flattened expanded metal. Raised expanded metal is also known as standard expanded metal, it has diamond openings with slightly raised surface. Flattened expanded metal is manufactured by passing the standard expanded sheet through a cold roll reducing mill, forming diamond openings with flat surface.
Features
One piece and single unit construction.
Less weight and more economic than regular metal sheet.
Extensive range of materials to suit any application.
It is rigid for protective uses, while providing decorative effect.
High quality for durable use.
The most economical option among all metal materials.
Easy to install.
